On a boat trip to Honshu island, Zatoichi (Katsu) makes the acquaintance of Jumonji (Narita), an expert shogi (Japanese chess) player and swordsman. Once on Honshu, a group of men that had tried to cheat Zatoichi at dice try to take revenge upon him- only for Ichi to turn the tables on them in the tussle. However, Miki, the niece of a woman named Otane, is injured in the confusion, compelling Ichi to go to great lengths to procure the medicine needed to cure her injury. When she recovers, the child sincerely thanks him, leaving him overwrought with emotion.